Granted Patent
Utility
US 4,599,357 · App. 06/219,140
1-mercaptoalkanoylindoline-2-carboxylic acids
Inventors:
James L. Stanton, Norbert Gruenfeld
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Dec 22, 1980
Inventors
James L. Stanton
Norbert Gruenfeld
Assignee (at issue)
Ciba-Geigy
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.